According to research studies, marijuana use causes aggressive behavior, causes or exacerbates psychosis and produce paranoias. These effects have been illustrated through case studies of highly publicized incidents and heightened political profiles.

Marijuana is currently a growing risk to the public in the United States. Following expanding public opinion that marijuana provides little risk to health, state and federal legislatures have begun changing laws that will significantly increase accessibility of marijuana. Greater marijuana accessibility, resulting in more use, will lead to increased health risks in all demographic categories across the country. Violence is a well-publicized, prominent risk from the more potent, current marijuana available.

The Gazette kicks off a four-day perspective series, "Clearing the Haze," that examines health, social, regulatory and financial issues associated with the world's boldest experiment with legal marijuana.
The ugly truth is that Colorado was suckered. It was promised regulation and has been met by an industry that fights tooth and nail any restrictions that limit its profitability.

Crime is common near pot shops, including assaults, robberies and shootings. On July 19, a security guard was killed and three other men were shot at a pot shop in L.A. during an attempted robbery. Gangs and drug dealers don’t view marijuana dispensaries as pharmacies. Rather, they see them as rival drug dealers.
When pot shops open in a business district, complaints of the business neighbors are numerous. Fights, drug use and street drug dealing increase in the area. This, in turn, affects the type of clientele in the area for neighboring businesses.
It is well known that homelessness has increased in Denver and Seattle after legalization. Also, drug dealing dramatically increases law enforcement costs. The San Diego Association of Governments published a report finding that 52% of males arrested tested positive for marijuana in 2015. Thirty-five percent reported committing crimes to support a drug habit.The Denver district attorney warned in 2016 that every type of crime there increased after marijuana legalization: “The Denver Police Department is busier enforcing marijuana laws and investigating crimes directly related to marijuana, including murders, robberies and home invasions, than any other time in the history of the city.”
And it can get even worse. Pot industry profits are used to buy political influence.

The town suddenly became a haven for recreational pot users, drawing in transients, panhandlers and a large number of homeless drug addicts, according to officials and business owners. Many are coming from New Mexico, Arizona and even New York.
He said he’s also noticed an uptick in crime in the area. Shoplifting, he said, has become a major problem in Durango and business owners are becoming fed up.

Now, as citizen groups attempt to put the brakes on the growing industry, a heated debate has emerged about the drug’s societal impact. Doctors report a spike in pot-related emergency room visits—mostly due to people accidentally consuming too much of potent edible pot products. Police face new cartel-related drug operations. Parents worry about marijuana being sold near their homes and schools. And less affluent communities like Pueblo struggle with the unintended consequences of becoming home to this emerging and controversial industry.
Groups serving the poor in Pueblo report a flood of homeless people arriving from other states. Local homeless shelter Posada, for instance, has witnessed a 47% jump in demand since 2014, including 1,200 people who reported to shelter workers that they came to smoke pot or get jobs in the industry, says Posada’s director, Anne Stattelman. She says her funding is tapped out. “It’s changed the culture of our community,” she says.
Since 2013, law officials say, they have busted 88 drug cartel operations across the state, and just last year law-enforcement made a bust that recovered $12 million in illegal marijuana. Adds Coffman: “That’s crime we hadn’t previously had in Colorado.”
Another surprise to many Coloradans is that a promised huge tax windfall to benefit schools hasn’t materialized. Of the $135 million generated in 2015, for example, $20 million goes to regulatory and public-safety efforts related to cannabis, $40 million funds small rural school construction projects, and the rest goes to youth drug prevention and abuse programs. That’s a drop in the bucket for a $6.2 billion education budget.
For a growing number of her neighbors, however, legalized marijuana is starting to feel like a really bad high.

Western Colorado law enforcement officials say that Colorado has now become a magnet for criminals coming to take advantage of the state's marijuana laws.
A little over a week later, a 51-year old Palisade man was shot and killed in different incident related to a large pot grow operation. So far, there have been no arrests in the case.
“Legalization was supposed to get rid of the black market – it hasn’t done that – I would estimate that the black market has grown 20 fold since legalization,” said Gaasche.

Since the legalization of recreational marijuana in Colorado in 2013 traffic related marijuana deaths have increased 48%, marijuana related emergency room visits have increased 49%, and marijuana related calls to the poison center have increased 100%. According to the Colorado Bureau of Investigation in 2015 statewide homicides in Colorado rose 14.7% over the previous year.
Pueblo, Colorado had the highest homicide rate with 11.1 killings per 100,000 residents. Aurora, Colorado’s homicide rate more than doubled from 2014. Additionally, more places in Colorado were robbed and more thefts occurred, especially vehicle theft. A total of 193,115 vehicles were reported stolen, up 27.7% in 2015 from the previous year. In 2015, sexual assaults rose 10% in Colorado with Denver, Aurora, Lakewood, Westminster, and Pueblo all reporting higher numbers as well. The letter also notes:
In the city of Denver since the legalization of recreational marijuana the number of crimes in Denver has grown by about 44%, according to annual figures the city reported to the National Incident Based Reporting System. In 2015 in Denver alone crime rose in every neighborhood in the city. The murder rate hit a decade high, 1059 more cars were broken into, there were 903 more auto thefts, 321 more aggravated assaults and 2321 more homes were broken into compared to 2014.

The latest incident involved a man swinging a large pipe at pedestrians near the McDonald’s at the intersection of Cleveland Place and the 16th Street Mall. A video of the wild behavior was posted online and received hundreds of thousands of views.

Friends, I make no bones about not being politically correct; neither do I apologize. But I would be the first to acknowledge that uneducated/unemployed weed-smoking/drug-crazed young black males are single-handedly responsible for the huge spike in the homicide rate. And this is being seen all across the country.

What makes this new study more compelling than previous studies is that the researchers followed the same individuals for over 50 years from a young age to adulthood. This is precisely what one needs to solve the chicken or egg riddle with respect to cannabis and violence: just look and see which one happens first.
One fifth of those who were pot smokers (22%) reported violent behavior that began after beginning to use cannabis, whereas only 0.3% reported violence before using weed. Continued use of cannabis over the life-time of the study was the strongest predictor of violent convictions, even when the other factors that contribute to violent behavior were considered in the statistical analysis.
In conclusion, the results show that continued cannabis use is associated with a 7-fold greater odds for subsequent commission of violent crimes. This level of risk is similar to the increased risk of lung cancer from smoking cigarettes over a similar duration (40 years). The authors suggest that impairments in neurological circuits controlling behavior may underlie impulsive, violent behavior, as a result of cannabis altering the normal neural functioning in the ventrolateral prefrontal cortex.

By the end of 2014, the number of total crimes was 24 percent higher than in 2012. Property crimes increased 14 percent from 2012 to 2013, and the 2014 data was 26 percent higher than the pre-pot legalization period.

Here is why there is confusion: the only time someone is sentenced to jail for smoking pot is if there is a more serious crime they are clearly guilty of, and the prosecutor or judge wants to give them a lighter sentence. Theft or burglary were the most common crimes I came across. Instead of being required to sentence a defendant to a year imprisonment for stealing, a defendant could plead guilty to marijuana possession instead and get a much lesser sentence. So on paper, it looks like they are serving time for drug possession, but in reality, they were let off the hook for a serious crime.

Adolescent marijuana use, particularly consistent use throughout adolescence, is associated with perpetration or both perpetration of and victimization by intimate partner violence in early adulthood. These findings have implications for intimate partner violence prevention efforts, as marijuana use should be considered as a target of early intimate partner violence intervention and treatment programming.

“Our courts and prisons are actually filled with people who committed serious crimes while under a drug’s influence or while they were in possession of very large amounts of a drug with the intent to sell it in circumstances associated with violence and/or firearms,” he said. “If anything, we need to conduct more research on how marijuana use contributes to criminal behavior.”

In response to inaccurate statistics from pro-marijuana groups and proposed legislation in South Carolina; the South Carolina Law Enforcement Division (SLED) conducted the following research:
On April 16, 2015, the South Carolina Department of Corrections reported that of the more than 23,000 inmates presently incarcerated, only ten (10) of those inmates had been convicted of possession of marijuana. All ten (10) inmates were incarcerated for multiple violent offenses, traffic violations, probation violations or negotiated plea bargains. None of the ten (10) would have been incarcerated at the South Carolina Department of Corrections without other more serious violations accompanying the possession of marijuana offenses.
Between April 16, 2015 and July 6, 2015, SLED made random inquiries of seven county detention centers throughout the four regions of the state. The total inmate population for the seven detention centers was 3,017. Of those 3,017 inmates, only six (6) (.001%) were incarcerated for possession of marijuana.

The U.S. Drug Enforcement Agency, in their 2013 National Drug Threat Assessment Summary, noted,“Transnational Criminal Organizations (TCO) and criminal groups will increasingly exploit the opportunities for marijuana cultivation and trafficking created in states that allow ‘medical marijuana’ grows and have legalized marijuana sales and possession.“ Meaning that marijuana legalization may well increase criminal gang activity.